I have been cosleeping with L (5 mos) since he was born though not every night and not all night. Lately he seems happiest/comforted when he is sleeping partially under our duvet so that it is pulled up to his waist and over his arms. I think he likes the weight. I sleep so that I have the duvet over my shoulders and I wake up the second he starts moving. Is this super dangerous and I just don't know it? Clearly don't want to endanger my son, but he hasn't moved much in his sleep so far and I keep the area around his face clear of pillows (just mine).
I put LO half under the duvet like you do in the early morning until I'm ready to get out of bed, but I'd be afraid to sleep like that. I keep the duvet at waist level when she's in with us.
I'm probably too casual about this but I also have a 5 month old and we bed share and she always had the duvet up to her waist. We've had no issues. I just haven't worried about it.
Re: Cosleeping with duvet?